And lebetjs c



(No Model.) v 3 Sheets-Sheet 2.

L. D. 81.- L. C. CHAPIN.

MBTALLURGIG FURNAGE.

2 Patented Aug. 14,1883.

3 Sheets-Sheet" 3.

(No Model.) .l

L. D. au L. C. C-HAPIN.

METALLURGIG FURNAGE. No. 283,075. Patented Ang. 14, 1883.;

ZKLEASf///.S mi) WJUJ'M N PETERS. Pnaxvulhogulmw. wash'mgwn. D. C

i UNITED' STATES QPATENT, OFFICE.

j Lucius n. cHAPIN,

METALLURGIC FU RNACE.

on doIsIIcAco, ILLINOIS, AND nessus c. cHArIN,A or

KALAMAzoo, MICHIGAN.

SPECIFICATION forming part of `:Letters Patent No. 283,075, dated August14, 11883. l application mea August 23, rss2. (No man.)

.To all whom it may concern,.-

Beit known that we, LUcIUs DCHAPIN, .re-

' siding at Chicago, State of Illinois, and LEB;

Ens C. GHAPIN, residing at Kalamazoo, State of Michigan, have inventedcertain .new and useful Improvements in Metallurgie Furnaces; and we dohereby declare the following to be a full, clear, Vand exact descriptionofthe in-l *f vention, suiicient to enable others skilled in thearttowhich it appertains to practice the same. y Y i AReferrin'gto theaccompanying drawings,

-wherein like letters of reference indicate like Figs. 3,4,"and 5areviews in detail,lshowingthe manner in which the swinging doormmay behinged to a standard at front and upon'on'e side of the balling-'vesseLd Our invention relates to metallurgie fur-` naces; and it consists ofcertain improvements' Y in the construction thereof, which willbehereinafter set forth, and particularly defined `by claims.

` The invention is shown in` the drawings asA appliedto a series ofrotary balling-furnaces i used to make wrought-iron by a process `whichinvolves, first, the semi-conversion of acharge of cast-iron in apneumatic converter of the Bessemer or like pattern, and, second, thetransfer of saidcharge in suitable portions to a rotaryballing-vessel,`wherein the reduction of the metal to the condition of;wrought-iron is perfected, the loop or ball resulting from thetreatment being removed from the vessel to the squeezers and rolled intomuck-bars in the usual way.` It is to be understood, however, that theinvention isnot restricted in value to the practice of any specialprocess, or to any special type of furnace,but that the peculiarfeatures of construction which distinguishsaid invention make itapplicable alike to avariety of processes and furnaces.

The converting-vessel A, sustained by trun- `ranged an elevated railway,B, supported by clutch gear c4 upon the shaft El controlling the nionsbetween suitable standards, A', is of the ordinaryv patterns used in theBessemer orpneumatic process for the conversion of cast-` iron." `Nearthe front of said vessel Ais arpostsorstandards B above lthe iioor ofthe mill, upon which railway B there 'runs a wheeledvtruck-frame, C',that carries the ladle C.4 The ladleC is sustained upon trunnionswithinthetruck-frame or carrier Cf inamanner convenient to allow for itsbeing tipped, and said ladle, as it travels upon the railway B, is soarranged with respect to the converter A as that when this latter isturned upon its trunnions by any of the usual means the mouth. 6 5 ofsaid converter will stand above the ladle C and the contents of theconverter be in part discharged into said ladle, as the operator deslres.

able to the capacity of the converter A, is aV series of rotaryballing-furnaces, which, with the converter and other usual adjuncts,constitute the plant. The balling-furnaces are, in the main, constructedin manner well known 7 5' to the art-that is to say, having a fuel and Yfire chamber, D, iittedwith grate-bars d, arotary balling-vessel, E,open at its ends and sustained upon the rollers c e in closejuxtapositionto the bridge-wall of the fire-chainber D, saidballing-vessel E being `free to rey volve through the medium ofcircumferential racke, affixed thereto, pinion e2, shaft E2, Initer-gearel, and line-shaft E3, the friction- 85 period and degree of rotationlThese several details of structure need not be more minutely described,because the same are made and cooperate in the usual well-known way..

At the front of the balling-vessel E there is provided a movable door,F, which may be hinged in any suitable manner, so as to swing freely toand from the mouth of the vessel E.' The door F is sustained by the,standards S, having brace-rods s extending therefrom. The standards andbrace-rods are `adjustably connected to the supporting-plate S2 by meansVof the bolts s,which work in the slots s3 and .s4 of said plate and inslotssi in the base of the standards, arranged at right angles to theslots Ioo Arranged side by-side, in 'any number suit-` 7o s4. By this'construction of parts the position of the doors can be readily adjusted4to compensate for any wear or distortion. The door F consists of astout metal frame having an opening through it corresponding to that'ofthe baller E, and bears upon its outer face a short projecting flue, F',of same internal di-V the mouth of the baller E, so that the faceplatef, secured to said door, bears against the like plate, e5,of the ballerE, then will the end of the yprojecting flue-piece F be in position toabut against the corresponding end of the movable flue G.

The flue G may consist of a stout sheet-metal casing linedinternally'with re-brick of similar resistance, and in the form shown bythe drawings is bent elbow like, the downtake of said flue dischargingfreely into a main flue, H, common to all of the severalballing-furnaces, which connects in turn with the ordinarychimney-stack. Attached to the downtake of the flue G -is an encirclingcollar, g, having a circumferential groove in the face thereof, toreceive a series of rollers, balls, or equivalent friction devices,which 'rest below in a like groove formed in the'face of a plate, g',sustained upon the main flue H. By this pivotal lor union joint themovable fine-section G is free to swing'about its ldowntake as an axis,and thus at will to be tightly joined to the door F, h. ving theprojecting fiue F thereon, or to be swung clear and away therefrom, asmay be necessary in the working of the hailing-furnace. It will benoticed that by thus curving or bending the movable flue-section itsweight' is sustained by the inain flue and a constant joint or closeconnection is maintained between the two. lt will be noted that theflue-piece F terminates in an opening lwhose plane isV oblique to thedoor F. The contour of the abutting end of the'movable flue-section G isan exact counterpart of this opening, whereby a perfectly-tight joint issecured between the parts, so that all leaks in the iiues shall beavoided. The ends lof the flue-sections are shown as curvedwith an equalradius and from a common center. This is the preferable G, controls atwill the egress of furnace-gases from the balling-vessel to the mainiiue H, so that at any desired stage of treatment of the charge in theballing-vessel the flame may be shut down and the charge kept quiescentuntil such time as the loop of another baller has been disposed of orother conditions necessary to the economic working of the metal fullled.

It must be apparent that by thus connecting the several liues leadingfrom each of the balling-vessels to a single main flue the charge ofmetal in each vessel may be worked with entire independence, and yet ifthe flame from any one be temporarily shut down it can be quickly variedto a degree of high intensity, when the valve G is shifted and thefurnacere is subjected to the extreme draft of the common flue andstack.

When the connection between the swinging flue and the furnace-door isbroken for purpose of obtaining access to the. interior of the furnace,the valve G is closed to prevent the entrance of air into the maindischarge-flue, Yfor in the absence of the valve it is clear that suchingress of cold air must tend to reduce the temperature of the main flueand to materially diminish the draft when the connection isre-established. If more than one furnace be used, the valves in theseveral flue-sections have the further useful functio'n of preventing anoutflow of hot products of combustion from the main discharge flue intothe workingrooma detrimental result which, in the absence of the valve,must occur when any one of the furnace-connections is temporarilybroken, as before described.

The common flue H may be located below the floor of the mill, as shown,or may be over-V against the proj eetion F of the door F, as heretoforedescribed. Nor is it necessary to the efficiency of this part of theinvention that there shall be a common flue at all, inasmuch as theswinging section G and door F co-operate with each other and with thefurnace to which they pertain with equal success, whatever the nature ofthe conduit into which swinging flue-section G may discharge.

By having the flue-section G and the door F to swing separately fromeach other, they are rendered less cumbrous, are easier of access,simpler in construction, independent in nievement, yet capable of beingquickly and tightly joined together. More room is afforded because ofthecompact and simple arrangement of the parts, thus through lthe medium ofthe elevated railway and traveling ladles allowing for the use of aseries of balling-furnaces in connection with a single converter orcupola.

It will be obvious that the several details of construction heretoforedescribed may be variedwithout departing from the spirit of theinvention.

What we claim as new, and desire by Letters Patent, is-

l. The combination, with a furnace, of a movable door, a movableflue-section sustained independently of said door, and a mainV disncharge-flue, substantially as described. 2. The combination, with thefurnace, of a movable door having a fine-piece projecting from the backthereof and terminating in an opening the planefof which is.L oblique tothe door, a movable flue-piece having an end whose contour is thecounterpart of the door fiuepiece, and a main discharge-line,substantially as described.

3. The combination, with a furnace and the to secure IOO IIO

` main" discharge-flue, of a movable flue-section connected byaunion-joint to the main discharge-nue, whereby the joint between saidmovable section and main flue is maintained constant during rotation ofthe flue-section,

substantially as described.

4:. The combination, with a furnace andthe main discharge-Hue, of anintermediate curved y or bent flue-section movably connected to andbearing uponthe main discharge-flue, substantially 'as described.4

5. The combination, with the balling-vessel and the main discharge-Hue,of a movable iiuesection connected by a union-j oint to the maindischarge-flue, whereby the joint between said movable section and mainflue is maintained constant during rotation of the iueesection,

` substantiallyas described.

6. The combination, with the ballingvessel andthe main discharge-fine,of the movable flue-section connected to the main ilue by a joint, asdescribed, and provided with avalve, substantially as set forth.

7. The combination, with a series of ballin vessels and a maindischarge-nue, of a series 2 of m'ovable Hue-sections, each 'providedwith a valve, substantially as described.

' 8. The combination, withrotary ballingvessel E, of the hinged door F,the swinging nue-section Gr, provided with the collar g, and 3o the mainflue H, bearing the plate g', substantially as described. 9. Thecombination, with the balling-vessel,

of a swinging door and an adjustable standard for sustaining said door,substantially as set 35 forth.

In' testimony whereof we have hereunto set our hands in presence of twosubscribing` witnesses.

LUcrUs D; oHArIN. LEBEUs c. oHArrN.

Witnesses for Lucius D. Chapin:

JAMES H. PErRoE, W. W. ELLIOTT.'

\ Witnesses for Lebens C. Chapin:

WM. S. LAWRENCE, W. MILTON LEE.

